Imprint-testing device



May- 27, 1930. J. F. ocoNNoR v 1360.714

- IMPRINT TESTING DEVICE Filed Deo. 2v. 1927 Patented May 27, 1930 Unirsel STATES* JEROME F. ocoNNora, or SAN FRANCISCO, CALIFORNA IMPRIN'r-TESTING DEVICE Y Appueeeien mea Deeember 27, 1927. serieu No. 242,878.

device of the character described which will l accurately simulate real service conditions and produce a true test of the number of impressions obtainable from any particular carbon paper or typing ribbon.

A further object is to provide an improved L 20 device of extremely light and compact form and whichmay erated. Another object is to provide an improved device which will facilitate the inserting Land be easily and rapidly opy r 25 replacing of rolls of paper.

A still further object is to provide an improved construction which can be manufactured economically and which Will be highly efficient in operation. I

I accomplish these and other objects by means of the improved 4device disclosed in the drawings forming a part of the present application wherein like characters of reference are used to designa-te similar parts through- Which- Fig. 1 is a'right side elevation of my improved imprint testing device, tm near side of the housing being partially broken away; Fig. 2 is a front elevation of thekdevice as shown in Fig. 1;

Fig. 3 is a plan view of the device;

Fig. 4 is a left side elevation of the device, the near` side of the housing being removed; Fig. 5 is a plan view of the platen frame assembly; and

Fig. 6 is a broken sectional detail showing the manner in which the impressing member is pivotally mounted within the housing.

Referring to the drawings, the numeral i. is

out the specification and drawings, and inI by said shaft and the used to designate in general a housing formed in two longitudinally matching sections arranged to be assembled and secured together by suitable screws 2. e Y e f A platen frame 3 is mounted within the housing 1, said framebeing pivotally mov-k able upon the journals v4ofa platen roll. 5 mounted within the frame.` Y The journals 4 extend through the sides of the frame and are journaled within the sides of the housing 1 to rotatably support the platen within the housing and forma Apivot for the frame 3. A friction roll7 ismounted Within the frame in proximate relation to the front of the platen roll 5, said roll being mounted by means `of a shaft 8 rotatably engaged by the4 side portions of the frame 3. Y. Y

A roll of paper 9 ismounted-,Within the back portion of the frame 3 by means. of a shaft k11 looselyy engaged by the side portions of the frame.' The 'free end ofthe paper roll is threaded over the yplaten roll 5 and between said platen roll and the friction roll 7. An inwardly disposedv extension 12 .formed integrally with the frame 3 is arranged to exert `a slight spring pressure against the side-of the roll 9 to normally prevent the unwinding of the roll'. A spring clip 13 is arranged to engage' and normally hold the-frame 3 in operative position/y' An impressing member 14 fispivotally mounted Within the upper portionfof the housing 1, said member being provided with a plurality of type bars 16 extending forwardly to a position directly overthe platen roll 5. Downwardly disposed extensions having type letters or other suitable'characters formed `upon the lower endszthereofA `are carried upon the outer ends of the bars 16. An extension `17 is formed upon the member 14 to be engaged by a cam 18 mounti ed upon a shaft 19 journaled in av bearing 20 formed within one side of the y housing 1. A crank :handle 21 is secured upon an outwardly extending end of the shaft 19 wherecam 18 may be rapidly rotated. Y

A pawl Q2 is connected to an extension 23 formed upon the member 14 and arranged to esterni inta operative engagement, 'with' frame, the rolls 5.and 7 beingjassembled into the framev and permanently retained between the side portions thereof. The ends-of .the journals 4 are received. within bearing portions formed inthe side members ofthe frame, thereby retaining the platen roll and frame within the housing `when the housing members are assembled` and secured in match* ing relation. The shaft 11 is removable from the frame' 3L A roll o-f paper y9 is placed in thel rearward' portion ofthe frame upon the shaft 11, 4the length of the shaft being such that, when the frame 3 is moved into norlmafl? operative position within the housing,

thefend'sof the shaft 11 will be engaged by the' side walls of the housing to retain theA shaft in operative position upon the frame. rlhe member 14 is removably mounted by means of athreaded pivot member 25 mounted within a Vside menrberof the housing.

In operation, the paper from the roll 9 vis threaded'over the platen roll 5 and downroll 7. An imprinting web 27 such as apiece of carbon paper, or ribbon, is placed against the upperfsulrface'o-f the platen roll 5 and v'the paper extending thereover as shown in 1Figs.} 1`andf 2" of the drawings, the upper surfacel 'o-f said rolfl bei-ng arranged in the jplane of the'forward portions' of the side v`walls of the housing 1 as shown. Clips 28 are mounted upon the upper edges of the side -walls of the housing to engage and retain the imprinting webi'27.. They crank handle 2,1 is` now'rotlateidi, thereby causing the cam '18 to engage and depress the extension 17 i and causing the type :bars 16' to bes-wung upwardlyas indicated Iin dotted linesin Figs.

1 and '4 ofthe drawings. As the cam clears the extension 17, the spring 26, against the tension of which the impressing member -14 has :been moved,"- cau'ses the type 'barsI 16 to be swung back and strike an: impression isrsufch that the impressioir struck bythe typeg bars 16 is 'substantially the same asvthe l' impression normally struck by theV type bar olf an ordinary typewriter and saidfbars -16 are preferablyrprovided with type characters .of the sameV face` as used upon typewriters to engage the ratchet 24 and thereby turn the platen sufliciently' to advance "the paper 9 an-'amount substantially equal to the ordif nary' typewriter spacing'. 'As-the -bars 16 are moved down to strike an impression the pawl is moved Vback to engage the next tooth of the ratchet when the bars are raised for Y the next impression. l

The cam 18 is provided with two diametrically opposite lifting portions so that for each rotation of the shaft 19 and cam 18, the type "barslwilfl be actuated to make two impresaccurately determined asthe testl will :per-

mit the-L actual number of to be counted; v

In testing carbon papers, a sheet of suitable paper 29 is placed over thecarbon paper` 27 to obtain the same conditions that prevail in actual use. In testing typew-riter ribbons legible impressions and the like, this sheet 29 is omitted. 1war-'dly'between said roll 5 and the friction lVhen a roll of paper 9 hasbeenexhausted, the france3 is moved out ofengagement with the clip-13 and swung to the position indicated' in dotted lines in Fig. 4. The shaft 11 may now be remoi'fedand a fresh roll of paper inserted and threaded' over theplaten. lV-hile I have illustrated and described i what I regard as the preferred embodiment of my invention, the device is, of cou-rse, subject to modification in numerous details without departing from the spirit ofmy invention. 1 therefore do not wish to restrictmyself ltothe specific details disclosed', but desire to avail myself of all modificati-ons which may fall w-ithin the scopeof'the appended claims. y f

Having thus described my invention what I claim as new and desire to secure by Letters Patent isf c v l 1. A testing device 'comprising a housing;

` n y a platenrotatablymounted within the hous,7 through the web 27l againstfthepaper 9k and platen roll' 5; The tension of the spring 26 ing;"a frame mounted lwithin the housing; a roll of paper mounted upon the frame and threaded over the platen, said vframe being arranged tobe moved outwardly from the housing to permit'replacementof the roll; an

imprinting membery pivotally mounted within the housing and arranged to strike against the platen and. paper to Limpress marksl upon said paper through an imprinting web held thereagainst for testing; and means for actuatin-gthe impressing .memberY to make a succession of impressions. Y 2. A y@sting device comprising a housing; a platen rotatably mounted within the housing.; a frame mounted within .the housing; a roll ofpaper mounted upon the frame and within the housing and arranged to strike against the platen and paper to impress marks upon said paper through an imprinting web held thereagainst for testing; and means for actuating the impressing member to make a succession of impressions; and means actuated in connection with the impressing member for automatically advancing the paper over the platen after each impression.

8. A testing device comprising a housing;

a frame; a platen having journals pivotally engaging the frame and journaled in the housing; a roll of paper mounted upon the trame and threaded over the platen, said Jframe being arranged to be swung outwardly upon the platen journals to permit replacement of the roll; an imprinting member pivotally mounted within the housing andk arranged to strike against the platen and paper to impress marks upon said paper through an imprint-ing web held thereagainst for tosting; and means for actuating the impressing member to make a succession of impressions.

4. A testing device comprising a housing; a trame; a platen having journals pivotally engaging the frame and journaled in the housing; a roll of paper mounted upon the frame and threaded over the platen, said frame being arranged to be swung outwardly upon the platen journals to permit replacement ot the roll; an imprinting member pivotally mounted witain the housing and arranged to strike against the platen and paper to impress marks upon said paper through an imprinting web held thereagainst 'for testing; means for actuating the impressing member to make a succession of impressions; and means actuated in connection with the impressing member for automatically advancing the paper over the platen after each impression. y

5. A testing device comprising a housing; a frame; a platen having journals pivotally engaging the frame and journaled in the housing; a roll of paper mounted upon the frame and threaded over the platen, said frame being arranged to be swung outwardly upon the platen ournals to permit replacement oi the roll; an imprinting member pivotally mounted within the housing and arranged to strike against the platen and paper to impress marks upon said paper through an imprinting web held thereagainst for testing; and means for actuating the impressing member to make a succession of impressions; a ratchet secured upon one end of t-he platen; and a pawl connected to the impressing member and actuated thereby for automatically turning the platen to advance the paper after each impression.

6. A. testing device vcomprising a housing; a rectangular frame mounted `within the housing; a platen mountedwithin the trame,

said platen being provided with journals extending through the trame to Jform a pivot therefor and jo-urnaled within the sides of the housing; a friction roller mounted within a roll et paper mounted within the :trame and threaded over the platen and between said platen and the friction roll, said trame being arranged to be swung .outwardly upon its pivot to permit replacement oi' the roll;

means for striking. a succession of impressions upon the paper through an imprinting web held against said paper and the platen; and means for advancing the paper over the platen after each impression;

7. A testing device comprising a housing; a rectangular trame mounted withinl lthe housing; a platen mounted within-the frame, said platen beingl providedwith ournals extending through the :trame to form a pivot therefor and journaled within the sides ot the housing.; a roll of paper mounted Awithin the 'frame and threaded over the platen, said trame being` arranged to be swung outwardly upon its pivot to permit replacement of the roll; means lor normally'l holding thev trame in operative position vwithin the housing; neans for striking a succession of impressions uponthe paper throughan imprinting web held against' said paper and the platen; and meanstor advancing the paper over the platen after each impression. A' Y 8. fi testing device comprising a housing; a rectangular frame mounted within the housing; a platen mounted within the frame, said platen being provided with j ournalsextending through the :trame to form a pivot therefor and journaled within the sides of the housing; a roll of paper mounted within the trame and threaded over the platen, said `trame being arranged to be swung loutwardly upon its pivotl to permit replacement of the roll; means for normally holding the iframe y in operative posit-ion within the housing; means for striking a succession of impressions upon the paper through an imprinting webheld against said paper and the platen; `means j for advancing` the paper over the platen after each impression; and means carried by the` trame and trictionally engaging the roll ot paper to normally prevent the unwinding of said roll.

9. A testing device comprising a housing; a rectangular frame mounted Within the housing; a platen mounted within the iframe, said platen being provided with journals eX- tending through the frame to form a pivotl therefor and journaled within the sides of the housing; a roll of paper mountedwithin the frame and threaded over the platen, said frame being arranged to be swung outwardly upon its pivot to permit replacement of the l the frame in proximatev relation to the platen;

roll; means lfor normally holding the frame operative position Within the'housing; an impressing member mounted Within the housmg and arranged to strike upon the platen;

afcam mounted Within the housing and arranged to engage the impressingmember; and means for rotating the cam to aetuate the impressing member yto strike a succession of impressions upon the paper through an imprinting web held against said paper and the platen. i

' l0. A testing device comprising a housing; a rectangular frame mounted Within the a platen mounted Within the frame, said platen being provided with journals eX- tending through the frame to form aA pivot therefor .and journaled Within the sides of the l1ousing;`a roll of paper mounted Within the frame and threaded over the platen, said frame being arranged to be swung out Wardlyupon its pivot to permit replacement of the roll; means for normally holding theV frame in operative position lWithin the housing; an impressing member mounted Within the housing and arranged to strike upon the platen; a cam mounted Within the housing and arranged to engage the impressing members; means for rotating the cam to actuate the impressing member to strike a suecession of impressions upon the paper through an imprinting web held against said paper and the platen; and means for advancing the paper over the platen after each impression. Y

In Witness whereof, I hereunto set my signature.

JEROME F. OCONNOR. 

